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Core i7-870


Description
The Core i7-870 is a cpu manufactured by Intel that was released on September 2009. This model has 4 Lynnfield cores with HyperThreading, runs at 2933 MHz as base frequency and has a a thermal design power of 95 W.

The i7-870 has 4x32+4x32 kB of cache L1, 4x256 kB of cache L2 and 8192 kB of cache L3.

Specs
Official name
Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz
CPUID
106e5
Core
Lynnfield
Architecture
Base frecuency
2.933 GHz
Boost frecuency
3.6 GHz
Socket
LGA 1156
Cores/Threads
4/8
TDP
95 W
Cache L1 (d+i)
4x32+4x32 kB
Cache L2
4x256 kB
Cache L3
8192 kB
Release date
September 2009

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
Multithread
Test#1 (Integers)
1982
4457 (x2.2)
Test#2 (FP)
4357
13952 (x3.2)
Test#3 (Generic, ZIP)
2241
7539 (x3.4)
Test#1 (Memory)
2718
1698 (x0.6)
TOTAL
11298
27646 (x2.4)

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [% vs time]

grafica bm.hardlimit.com


Test#2 (FP) [% vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [% vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [% vs time]

grafica bm.hardlimit.coma


Test#2 (FP) [% vs time]

grafica bm.hardlimit.coma


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.coma


Test#1 (Memory) [% vs time]

grafica bm.hardlimit.coma

Similar CPUs to Core i7-870
Intel Core i7-870 (This model)
 Mode FPU monothread  [11298 points]
 Mode FPU multithread  [27646 points]
 Mode FPU monothread  [10647 points -5.76%]
 Mode FPU multithread  [35493 points +28.39%]
 Mode SSE monothread  [15738 points +39.30%]
 Mode SSE multithread  [55657 points +101.32%]
 Mode FPU monothread  [12636 points +11.85%]
 Mode FPU multithread  [58113 points +110.20%]
 Mode SSE monothread  [16769 points +48.42%]
 Mode SSE multithread  [80186 points +190.05%]
 Mode FPU monothread  [7815 points -30.83%]
 Mode FPU multithread  [14455 points -47.72%]
 Mode SSE monothread  [8294 points -26.58%]
 Mode SSE multithread  [15436 points -44.16%]
 Mode FPU monothread  [13662 points +20.92%]
 Mode FPU multithread  [25288 points -8.53%]
 Mode SSE monothread  [15062 points +33.32%]
 Mode SSE multithread  [28019 points +1.35%]
 Mode FPU monothread  [11371 points +0.65%]
 Mode FPU multithread  [42106 points +52.30%]
 Mode SSE monothread  [17580 points +55.61%]
 Mode SSE multithread  [69393 points +151.01%]
 Mode FPU monothread  [9749 points -13.71%]
 Mode FPU multithread  [15318 points -44.59%]
 Mode SSE monothread  [10305 points -8.78%]
 Mode SSE multithread  [16385 points -40.73%]
 Mode FPU monothread  [9945 points -11.97%]
 Mode FPU multithread  [15861 points -42.63%]
 Mode SSE monothread  [9993 points -11.55%]
 Mode SSE multithread  [16117 points -41.70%]
 Mode FPU monothread  [16266 points +43.98%]
 Mode FPU multithread  [23251 points -15.90%]
 Mode SSE monothread  [16910 points +49.67%]
 Mode SSE multithread  [26882 points -2.76%]
 Mode FPU monothread  [16417 points +45.31%]
 Mode FPU multithread  [31719 points +14.73%]
 Mode AVX monothread  [23824 points +110.87%]
 Mode AVX multithread  [48300 points +74.71%]
 Mode FPU monothread  [15618 points +38.24%]
 Mode FPU multithread  [31349 points +13.40%]
 Mode AVX monothread  [20103 points +77.94%]
 Mode AVX multithread  [38683 points +39.92%]
          
FPU mode comparison

Monothread integers operations
Model
Score
Intel Core i7-870
1982
This model

Multithread integers operations

Monothread floating point operations
Model
Score
Intel Core i7-870
4357
This model
3951 [-9.33%]
3910 [-10.26%]
3797 [-12.87%]

Multithread floating point operations
Model
Score
15370 [10.17%]
Intel Core i7-870
13952
This model
13676 [-1.97%]

Monothread generic test (Zip compression)
Model
Score
2295 [2.41%]
Intel Core i7-870
2241
This model
2192 [-2.20%]

Multithread generic test (Zip compression)
Model
Score
Intel Core i7-870
7539
This model

Monothread memory performance
Model
Score
2928 [7.74%]
Intel Core i7-870
2718
This model
2656 [-2.30%]
2422 [-10.88%]

Multithread memory performance
Model
Score
1740 [2.47%]
Intel Core i7-870
1698
This model
1517 [-10.66%]
1455 [-14.33%]

Hardlimit Benchmark Central - Ver. 3.7.9